Fire arm



(No Model.)

J. MAC NAUGHTON. BREBGH LOADING FIRE ARM.

Patentd Sept. 19, 1882.

UNITED STATI-3s PATENT OFFICE,

AMES MACNAUGHTON, 0F EDINBURGH, SCOTLAND.

BREEVCH-LOADING FIRE-ARM.

SPECIFICATION forming part of Letters Patent No. 264,723, dated September 19, 1882,

Application filed May 12, 18511. (No model.) Patented in England July 1'2, 1879, No. 52,848.

To all whom it may concern Be it known that I, JAMES MACNAUGHTON, a subject of the Queen of Great Britain and Ireland, and residing in the city and county of Edinburgh, Scotland, have invented certain Improvements in Breech-Loading Fire-Arms, (for which l obtained Letters Patent in Great Britain, No. 2,848, dated July 12, 1879,)l of which the following is a specitication.

My invention relates to improvements in the construction of the action of breech-loading tire-arms; and the object of myinven'tiou is to so construct such action as to render the weapons safer and more convenient in action, as well as more durable and eicient, than as hitherro constructedl 1n the accompanying drawings, Figure l is alongitcdinal section of a double-barreled-gun action according to my invention; Fig. 2, an inverted plan view with the trigger-plate, triggers, hammers, and connecting parts removed; Pig. 3, a plan view, showing the trigger-plate with the hammers, sears, and Sear-springs; Figs. 4 and 5, a side view partly in section, and aplan, respectively, of the locking and pushing bolt; Figsand 7, views of the safetybolt hereinafter referred to; Figs.`8 and 9, views of part ot the locking hand-lever; and Fig. 10, a plan view ofthe sears, showing the manner of pivoting the triggers on the same pin with/the sears.

The breech ends of the barrels of the gun are pivoted or hinged to the bed part A of the break-oli or lump A', with the usual gripping-pieces projecting down from theeenter rib between the barrels through the slots vin the bed part A. The upper part of the rib between the barrels is extended backward to t into a vertical segmental slot, A, in the face of the break-olf A', and a horizontal slot is formedin the barre1rib,into which a horizontal swiveling segmental bolt, B, enters to lock the barrels. This bolt'B formspart of the top hand-lever, B', or it may be fixed on its vertical spindle G, and it is actuated by swiveling the hand-lever B', which turns the spindle U partly round., and also actuates the sliding double grip-bolt by means of anarm or lever, C', ou the lower end of the spindle C, connected by a linkfc", to the bolt b, as shown particularly in Figs. 4 and 5. The spindle C extends downward in the lump vA' to the trigger-plate so as to have a firm and extended bea-ring, and, passing through a slot in the bolt b, has at its end an arm, C', connected to the bolt b by a link, c", in a recess in the under side of the bolt, this link admitting a free movement ofthe bolt wi'h butlittle friction. The nioring or swiveling of thehand-lever B' to one side frees the barrels from the swiveling locking-bolt B, and also draws back the double grip-bolt b till the slot in it comes in line with those in the bed-piece A, to release the gripping lumpsor pieces on the barrel-rib and allow the barrels t-o be hinged out for the withdrawal ol' the spent cartridges and the insertion of charged cartridges. llhe boltb is forked Aat the rear end, b', and acts on pushers d rl jointed on the hammers DD, and the'salneaction of the hand-lever B' on the boltb through the link c" causes it to act on these pushers (l d to press back the hammers D to full-cock si-A multaneously. The bolts B and b and the hand-lever B are brought back to a'nd keptin their normal positions, locking the barrels by means of a spring, U2, the end of which bears against a stud or pin, c, fitted in the vertical spindle U, as shown in Fig. 4.

The hammers D and tumblersD` which are combined, are centered on a pind', near the center ofthe gun and fitted in slots in the trigger-plate E. The action is constructed with the hammers D D pivoted, as shown, on the pin d low down in the ,strap of the trigger'- plate E, and the pistons e e are carried through the strap of the action near the center ot' the gun, converging from the centers ot' the barrels to near the center of the action, as shown by dotted lines in Figs. l and 2, and as high as possible, so that the hammers D D have the greatest possible radial sweep and powerful eect in striking the pistons e e.

The sears or scar-levers f f are mounted close over the tumblers D on apin, f2, passing through eyes in the sears, and screwed or fitted in the feathers d2 projecting up from the trigger-plate E. A single scar-spring, j", fixed to the trigger-plate E, is provided, and is split downthe. center in front to act independently on both searsfffor retaining the hammers D at full-cock, and the sears tit over and press on the triggers F. The triggers F Fare hung on the pinfz, to which the sears arejointed or centered, thc ends of the sears being forked ger to be drawn.

and the upper ends ot' the triggersF reduced, and entered between these forked ends, so that the pin f2 can be passed through to retain both triggers and sears, as isindicated in Fig. 3, and the triggers thus truly centered.

The hammers D D are actuated to strike the pistons e e by means ot' mainsprings Gr Gr, formed as single bows, compressed longitudinally when the hammers are cocked. The t'ront ends, y, ot' these springs G are bent or inclined upward, aud .have a pushing -action on the tulnblers and hammers. The backends ofthe springs Gr are curved down and forced into an undercut notch in the upper face ofthe trigger-plate E. These springs (lr G increase in power as the hammers approach to strike the pistons c c, causing the hammers to strike a sharp blow, and they also lessen the force re- -quiiedto actuate the limiti hand-lever B iu cooking the hammers. e

A safety bolt, lever, or catch, ll, is provided for securing. the triggers by preventing the rise ol' the sears ffresting on them, and consequent accidental discharge ol" the gun. This satety-bolt All, which is particularly shown in Figs. o and T, is titted to slide in a dovetailed groove in the rear st-rap, A, ot' the gun, and is liointed at its ends to a notched lever, It, on apin, it', to which a small thumb-lever, /t2,'is titted over the rear stra-p, Afand just behind the niain handAlever li. When the hammers l) arc pressed hack to full-cock they strike against the end ot' this safety-boltH and push it back forcibly into the position shown iu Fig. 1, to cover-and automatically lock the sears f fand prevent thctrigger being drawn. lhen the gun is to be tired the ythumb-lever h2 is pressed to one side, and actingr through the leveuarin It it pushes the safety-bolt I1 forward clear ot' the sears, an-tl allows the trig- 'lhe lever h and bolt H are retained in either position by means ot' aspring, ll', whose end bears into notches in the boss or center ot' the lever lz., which alsouby forcing` itseltint'o one Qrother ofthe notches, prevents thcbo-lt ll assuming an intern'tediate position.

Airaperture, l, is formed in the rear strap, A3, and 'is fitted water-tight with a pane ot' plate-glass or'mica to enable thel person using the gun to see whetheror not it is at full-cock.

rlhe main hand-lever B is also formed with a slot. or openino, B", where it would otherwise cover the aperture in the rear strap.

I-do not desire to claim broadly a breech loading gun in which the drawing back of the locking-bolt releases the barrelsand simultaneously cocks the hammers; but

I claim as my invention- 1. The combination otl the pivoted barrels, break-ott', bed part, slotted locking-bolt 1), and

hammers with spindle C, passing through aslot in the locking-bolt, and link c, connecting the spindle with the bolt, the latter cockiug the hammers when it is drawn back to unlock the barrels, all substantially as described.

2. ln a ln'eech-loading fire-arm, the combination ot' the sears ff, having forked ends, with pirot-pinfZ and triggers l F, having reduced ends adapted to said forked sears and mounted on the same. pivot-pin.

3. rlhe combination, in a breech-loadingtire-arm, ot' the hammers', triggers, and sears fj' with sliding safety-bolt H, notched lever l1', pin h, and thumb-lever h2, all substantially as described. n

it. In a breech-loading tire-arm, the combination ot' the hammers l) l), pivoted close together near the center 'ot' the gun, on the strap ot the trigger-plate, w-ith the pistons e e passing through the strap ot' the action and converging from the centers of the barrels to the center ot' the action, all 'substantially as and for the purpose set forth.

In testimony whereot'lhave signed my name to this specification in the presence ot' two subscribing witnesses.

JAMES MACNA'UGHTON.

\Vitnesses: 7

WALLACE FAmWE/t'rnnn, ALEX. Formes. 

